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Dvinal [7]
3 years ago
11

A scientist begins an experiment with a culture of 5 bacteria cells. Every hour, the number of bacteria cells triples. Which equ

ation can be used to represent the number of bacteria cells, y, as it relates to time in hours, x?
y = 5 x
y = 3(5) x
y = 3 x
y = 5(3) x
Mathematics
2 answers:
vodka [1.7K]3 years ago
5 0
The answer is 5(3)^x because tripling something means the base must be 3, which leaves the 5 to be the principal value.
Liono4ka [1.6K]3 years ago
4 0
Whichever one is 5*3^x.
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Fraction 3 over 4x = Fraction 1 over 5. x = ___?
umka21 [38]

Answer:

\large\boxed{x=3\dfrac{3}{4}}

Step-by-step explanation:

\dfrac{3}{4x}=\dfrac{1}{5}\qquad\text{cross multiply}\\\\(4x)(1)=(3)(5)\\\\4x=15\qquad\text{divide both sides by 4}\\\\x=\dfrac{15}{4}\\\\x=3\dfrac{3}{4}

7 0
3 years ago
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I need to write a problem for this equation 3(2x-5)=24
o-na [289]

Answer:

Three times the difference of two times a number and five is equal to 24, what is x?  

Step-by-step explanation:

To write any equation in word problems, it is important to identify all your parenthesis operations by their technical names. Subtraction is a difference. So since we are multiplying it by 3, it becomes three times a difference.


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Find two numbers the quotiens is between 136÷6
Alekssandra [29.7K]
The answer is 22.6 so the quotient would be between 22.0 and 23.0, hope this helps.
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4 years ago
Identify the correct corresponding parts
andrey2020 [161]

Answer:

The correct corresponding part is;

\overline {CB} ≅ \overline {CD}

Step-by-step explanation:

The information given symbolically in the diagram are;

ΔCAB is congruent to ΔCED (ΔCAB ≅ ΔCED)

Segment \overline {CA} is congruent to \overline {CE} ( \overline {CA} ≅ \overline {CE})

Segment \overline {CB} is congruent to \overline {CD} ( \overline {CB} ≅ \overline {CD})

From which, we have;

∠A ≅ ∠E by Congruent Parts of Congruent Triangles are Congruent (CPCTC)

∠B ≅ ∠D by CPCTC

Segment \overline {AB} is congruent to \overline {DE} (\overline {AB} ≅ \overline {DE}) by CPCTC

Segment \overline {AE} bisects \overline {BD}

Segment \overline {BD} bisects \overline {AE}

Therefore, the correct option is \overline {CB} ≅ \overline {CD}

3 0
3 years ago
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swat32
Answer is 43 degrees for #6, and selection C for #7
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